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HVACR EXAM 1 QUIZZES & ANS!!
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HVACR EXAM 1 QUIZZES & ANS!!
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Name: Score:19 Multiple choice questions
Term 1 of 19
The heat transfer between two objects that are in direct physical contact with one another is
called _______.
Conduction
Radiation
Convection
Insulation
Term 2 of 19
Two HVAC/R technicians are discussing the properties of water. Technician A says that if the
pressure of water is raised, the boiling point will decrease. Technician B says that placing water in
a vacuum will cause its boiling point to increase. Which one of the following statements is
correct?
Both A And B
Neither A Nor B
Only B Is Correct
Technician B
Term 3 of 19
Calculate the amount of heat required to change 10 pounds of ice (at 20°F) to steam (at 220°F).
44.7
1404
20
3730
, Definition 4 of 19
volume would increase
The density of a solid or liquid material divided by the density of water is called the _______
of the material.
Which one of the following is an example of kinetic energy?
According to Charles's law, if the temperature of a gas is increased, then the
Two HVAC/R technicians are discussing units of energy. Technician A says that a BTU is
defined as the work performed by a force of 1 Newton (N) moving an object over a distance
of 1 meter (m). Technician B says that if you have a 60 watt light bulb that has been on for 6
hours, that light has consumed 360 watt-hours of energy. Which one of the following
statements is correct?
Definition 5 of 19
5 Feet (1/4 of the height)
Two HVAC/R technicians are discussing the properties of water. Technician A says that if the
pressure of water is raised, the boiling point will decrease. Technician B says that placing
water in a vacuum will cause its boiling point to increase. Which one of the following
statements is correct?
Two technicians are discussing the HVAC/R field. Technician A says that industry codes that
require certain types of installation practices carry the force of law with them. Technician B
says that ANSI is an organization that establishes codes for the HVAC/R field. Which one of
the following statements is correct?
Two HVAC/R technicians are discussing welding equipment. Technician A says that it's not
necessary to remove the regulators from oxygen and acetylene cylinders when you're
transporting them in a vehicle. Technician B says that cylinders should be chained to carts
or structures any time their caps are removed. Which one of the following statements is
correct?
Two HVAC/R technicians are discussing the change of states in matter. Technician A says
that the latent heat of fusion is the amount of heat that must be added to matter to convert
it from a liquid to a gas. Technician B says that the amount of latent heat required to change
the state of matter will vary depending on the type of matter. Which one of the following
statements is correct?
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